[Amps] coaxial stub on amplifier output

[donroden at hiwaay.net]

Say what ???

Don WA4NPL


Quoting "John Lyles" <jtml at losalamos.com>:

> Has anyone seen anything in print about using a lambda/4 (Quarter
> wavelength) stub on the output of an amplifier with a tube. Its a nice
> way to bring water, tuning mechanisms into an output circuit, without
> looking like a short circuit for the primary frequency. This same stub
> is a half wavelength at second harmonic, so it reflects a short right
> across the output at F2. This should cause some plate current waveform
> modification, depending on where it is located physically with respect
> to the plate, i.e., similar to Tyler circuits.
>
> 73
> K5PRO
> John
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